Jump to content
LaptopVideo2Go Forums

HP 8740w Quadro M4000M Upgrade Fan problem


Recommended Posts


I upgraded HP Elitebook 8740w from it basic ATI GPU. Fan worked properly with ATI, but with nVida M4000M doesn't. I upgraded system Bios and later on allso vBios from Dell manufacturer to HP. I profit snappier system Bios menue than with Dell manufacturer vBios but fan is still in one gear and never change.

    I tryed with reading EC chip (Embedded Controller) Read and Write registers. On other sistems like Lenovo you can read and manipulate Fan with app that use this two registers. On this HP sistem i can't do it. Any sugestions?


HP 8740w, Windows 10, i7 840QM, Bios F.60, vBios HP 84.04.9B.00.06 from original Dell 84.04.9B.00.15

Read register #46 Write register #47


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...